Is CVE-2026-109670 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109670 being exploited in the wild.

How severe is CVE-2026-109670?

Medium severity, with a CVSS score of 5.4, published 12 October 2026.

Which products and versions are affected?

Frappe ERPNext before 15.110.0 and 16.x before 16.21.0.

Is there a fix for CVE-2026-109670?

Yes: fixed in ERPNext 15.110.0, 16.21.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-109670 attacked?

It is attacked over the network.

Am I affected by CVE-2026-109670?

Check whether you run Frappe ERPNext at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-109670: Frappe ERPNext stored cross-site scripting in item record names

CVE-2026-109670 · Severity: medium · CVSS 5.4 · Published 2026-10-12

Frappe ERPNext is an enterprise resource planning system that manages business operations and customer relationships. A stored cross-site scripting vulnerability allows users with write access to the item master data to inject malicious scripts that execute when other users view affected pages, potentially compromising session tokens or sensitive data visible to operators. The vulnerability requires an attacker to have existing write permissions and the victim to visit a page displaying the malicious record.

Technologies: Frappe ERPNext. Vendors: Frappe.

Quick answers

Is CVE-2026-109670 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109670 being exploited in the wild.
How severe is CVE-2026-109670?: Medium severity, with a CVSS score of 5.4, published 12 October 2026.
Which products and versions are affected?: Frappe ERPNext before 15.110.0 and 16.x before 16.21.0.
Is there a fix for CVE-2026-109670?: Yes: fixed in ERPNext 15.110.0, 16.21.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-109670 attacked?: It is attacked over the network.
Am I affected by CVE-2026-109670?: Check whether you run Frappe ERPNext at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: ERPNext 15.110.0, 16.21.0

Technical details

A stored XSS flaw in ERPNext fails to escape record names when rendering them in web pages, allowing injection of arbitrary HTML and JavaScript. Attackers with write access to item master data can craft malicious script in record names that persists and executes in any operator's browser context when the page is viewed. The attack requires low privileges (write access), network availability, and user interaction (victim visiting the page), with impact limited to the session scope.

Affected products

Frappe ERPNext before 15.110.0 and 16.x before 16.21.0

Timeline

2026-08-13: disclosed
2026-10-12: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.